OPA361-Q1 Datasheet, PDF (1/18 Pages) Texas Instruments – 3V Video Amplifier with Internal Gain and Filter in SC70

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3V Video Amplifier with Internal Gain and Filter in SC70
Check for Samples: OPA361-Q1
OPA361-Q1
SBOS552 – MARCH 2011
FEATURES
1
• Qualified for Automotive Applications
• Excellent Video Performance
• Internal Gain: 5.2V/V
• Supports TV-Detection
• Compatible with OMAP242x and
DAVINCI™ Processors
• 2-Pole Reconstruction Filter
• Input Range Includes Ground
– DC-Coupled Input
• Integrated Level Shifter
– DC-Coupled Output⁽¹⁾
– No Output Capacitors Needed
• Rail-to-Rail Output
• Low Quiescent Current: 5.3mA
• Shutdown Current: 1.5µA
• Single-Supply: 2.5V to 3.3V
• SC70-6 Package: 2.0mm × 2.1mm
• RoHS Compliant
(1) _{Internal circuitry avoids output saturation, even with 0V sync}
tip level at the input video signal.
V+
OPA361
10mV
+In
2-Pole
Filter
500Ω
75Ω
Out
DESCRIPTION
The OPA361-Q1 high-speed amplifier is optimized for
3V portable video applications. It is specifically
designed to be compatible with the video encoders
embedded in Texas Instruments’ OMAP2420 and
DaVinci processors or other application processors
with 0.5V_PP video output. The input common-mode
range includes GND, which allows a video-DAC
(digital-to-analog converter) to be DC-coupled to the
OPA361-Q1. The TV-detection feature simplifies the
end-user interface significantly by facilitating the
automatic start/stop of video transmission.
The output swings within 5mV of GND and 250mV to
V+ with a standard back-terminated video load
(150Ω). An internal level shift circuit prevents the
output from saturating with 0V input, thus preventing
sync-pulse clipping in common video circuits.
Therefore, the OPA361-Q1 is ideally suited for
DC-coupling to the video load.
The OPA361-Q1 has been optimized for
space-sensitive applications by integrating internal
gain setting resistors (G = 5.2V/V) and a 2-pole
video-DAC reconstruction filter.
In shutdown mode, the quiescent current is reduced
to < 1.5µA, dramatically reducing power consumption
and prolonging battery life.
The OPA361-Q1 is available in the tiny 2mm ×
2.1mm SC70-6 package.
R_SET
Enable
4kΩ
Shutdown
Control
G =5.2V/V
(see note 1)
GND
(1) Closed when enabled during normal
operation; open when shut down.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated